chr20-62880840-G-C

Position:

• chr20-62880840-G-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_001193369.2(DIDO1):​c.5116C>G​(p.Leu1706Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00202 in 1,612,792 control chromosomes in the GnomAD database, including 60 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.010 (23 hom., cov: 33)
  • Exomes 𝑓: 0.0011 (37 hom.)
• Consequence: DIDO1 NM_001193369.2 missense
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.0570

Genes affected

DIDO1 (HGNC:2680): (death inducer-obliterator 1) Apoptosis, a major form of cell death, is an efficient mechanism for eliminating unwanted cells and is of central importance for development and homeostasis in metazoan animals. In mice, the death inducer-obliterator-1 gene is upregulated by apoptotic signals and encodes a cytoplasmic protein that translocates to the nucleus upon apoptotic signal activation. When overexpressed, the mouse protein induced apoptosis in cell lines growing in vitro. This gene is similar to the mouse gene and therefore is thought to be involved in apoptosis. Alternatively spliced transcripts have been found for this gene, encoding multiple isoforms. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0018367171).
• BP6: Variant 20-62880840-G-C is Benign according to our data. Variant chr20-62880840-G-C is described in ClinVar as [Benign]. Clinvar id is 769107.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0104 (1588/152288) while in subpopulation AFR AF= 0.0366 (1522/41566). AF 95% confidence interval is 0.0351. There are 23 homozygotes in gnomad4. There are 768 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1588 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DIDO1	NM_001193369.2	c.5116C>G	p.Leu1706Val	missense_variant	16/16	ENST00000395343.6	NP_001180298.1
DIDO1	NM_033081.3	c.5116C>G	p.Leu1706Val	missense_variant	16/16		NP_149072.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DIDO1	ENST00000395343.6	c.5116C>G	p.Leu1706Val	missense_variant	16/16	1	NM_001193369.2	ENSP00000378752	P2
DIDO1	ENST00000266070.8	c.5116C>G	p.Leu1706Val	missense_variant	16/16	5		ENSP00000266070	P2

Frequencies

GnomAD3 genomes AF: 0.0104 AC: 1583 AN: 152170 Hom.: 23 Cov.: 33

Gnomad AFR AF: 0.0366

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00301

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00574

GnomAD3 exomes AF: 0.00280 AC: 701 AN: 250042 Hom.: 15 AF XY: 0.00201 AC XY: 272 AN XY: 135606

Gnomad AFR exome AF: 0.0394

Gnomad AMR exome AF: 0.00139

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000888

Gnomad OTH exome AF: 0.00115

GnomAD4 exome AF: 0.00115 AC: 1676 AN: 1460504 Hom.: 37 Cov.: 32 AF XY: 0.000963 AC XY: 700 AN XY: 726526

Gnomad4 AFR exome AF: 0.0416

Gnomad4 AMR exome AF: 0.00163

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000450

Gnomad4 OTH exome AF: 0.00258

GnomAD4 genome AF: 0.0104 AC: 1588 AN: 152288 Hom.: 23 Cov.: 33 AF XY: 0.0103 AC XY: 768 AN XY: 74478

Gnomad4 AFR AF: 0.0366

Gnomad4 AMR AF: 0.00300

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000103

Gnomad4 OTH AF: 0.00568

Alfa AF: 0.00314 Hom.: 5

Bravo AF: 0.0115

ESP6500AA AF: 0.0343 AC: 151

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.00335 AC: 406

Asia WGS AF: 0.00260 AC: 9 AN: 3478

EpiCase AF: 0.000164

EpiControl AF: 0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2018	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.061
BayesDel_addAF	Benign	-0.75	T
BayesDel_noAF	Benign	-0.82
CADD	Benign	1.3
DANN	Benign	0.054
DEOGEN2	Benign	0.052	T;T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.064	N
LIST_S2	Benign	0.34	T;.
MetaRNN	Benign	0.0018	T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.34	N;N
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.28	T
PROVEAN	Benign	0.070	N;N
REVEL	Benign	0.053
Sift	Benign	0.26	T;T
Sift4G	Benign	1.0	T;T
Polyphen		0.0030	B;B
Vest4		0.048
MVP		0.14
MPC		0.37
ClinPred		0.0063	T
GERP RS		-1.1
Varity_R		0.037
gMVP		0.22

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs74590491; hg19: chr20-61512192; COSMIC: COSV99060237;